Question

a soma de um número com 12 é igual a 23.Qual a equação que a representa;
(a)x+23=12
(b)2x+12=23
(c)-x+12=23
(d)x+12=23

Answer 1

a) x+23=12

x=12-23

X=-11

b)2x+12=23

2x+23-12

2x=11

x= 11/2

c)-x+12=23

-x=23-12

x=-11

d) x+12=23

x=23-12

x=11

Answer 2

Resposta:

a) x+23=12

x=12-23

X=-11

___________________________________________

b)2x+12=23

2x+23-12

2x=11

x= 11/2

______________________________________________

c)-x+12=23

-x=23-12

x=-11

______________________________________________

d) x+12=23

x=23-12

x=11

Explicação passo-a-passo: